Want colder water without waiting for a freezer? Grab a bowl, fill it with ice, and dump a generous handful of salt over the top. Mix it up, then stick your drink in the middle.
Why does this work? Salt lowers the freezing point of water. It forces the ice to melt faster, which steals heat from the surrounding liquid—including your drink. Your water will get so cold it might even form little ice crystals on the glass. Just don’t accidentally drink the salty brine. That’s a rookie mistake, and you’ll be thirstier than a camel at a desert convention.
Bonus: The Wet Paper Towel Wizardry
This one sounds like a bar trick from a mad scientist, but it works. Wrap your water bottle in a wet paper towel, then stick it in the freezer. The water on the paper towel freezes first, creating a cold jacket around your bottle.
The cold jacket then conducts the cold into your water way faster than dry plastic can. In about 15 minutes, you’ll have water that’s near-slushy. It’s like giving your bottle a tiny arctic sweater. Fashion meets function.
How Do Water Coolers Make Water Cold at Carolyn Lafleur blog
